Dental applications – Innovation meets quality

The starting point – Improving material, design and functionality
To optimize minimally invasive caries treatment using highly fluid infiltrating resin, DMG sought a new manufacturing partner to redesign the existing syringe and its seals. The goal was to find a new material for the sealing plug, redesign the seal, and improve functionality. DMG contacted toolcraft for development and component manufacturing.

The Challenge – Meeting highest standards for medical parts
The material had to be compatible with the infiltrating fluid and provide the required Shore hardness for sealing. Tight tolerances for fits were critical. The biggest challenge was thermal management in 2K injection moulding due to the large temperature difference between the PBT hard and TPE soft components. Cycle time optimization and maintaining high medical quality standards were also key.

The Approach – Comprehensive consultation and support every step of the way
Consulting on material selection and design, developing designs for four parts in three plastics (2K PBT, TPE, 1K LSR), building two moulds and production of the injection moulded parts. Components were robotically removed, singulated, and quality checked (including CT scanning). A mounting fixture was designed and built to assemble the parts.

The Result – Automated manufacturing and quality assurance
Thanks to toolcraft’s expertise, production, assembly and CT-based inspection were automated and components optimized. From design to production, teams from toolmaking, injection moulding and robotics ensured seamless customer support.